http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f69-subject=Shale -- Ohio) http://norton.wrhs.org/collections/search?docsPerPage%3D100;f69-subject%3DShale%20--%20Ohio Results for your query: docsPerPage=100;f69-subject=Shale -- Ohio Thu, 01 Jan 1970 12:00:00 GMT Potential natural gas resources in the Devonian shales in Ohio. Janssens, Adriaan., De Witt, Wallace, 1920- http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Devonian-Mississippian shale sequence in Ohio. Hoover, Karl V. (Karl Victor), Ohio Division of Geological Survey. http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://norton.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT